HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
A BIG THANK YOU
RANDALL

Hello. You didn't state your level of knowledge. If this is one of the simpler scopes with recurrent sweep it is very likely to be similar to one of the same kind of Heathkits since schools often used their kits as part of the course. This kind of scope is relatively simple and easy to operate. It would not be difficult to trace out the wiring and draw up a schematic using one of the Heath schematics as a rough guide.

http://www.vintage-radio.info/heathkit/index.htm

There are other Heathkit sites that have photos that might be close to what you have. Heath manuals are not free anymore. A similar EICO or Knight will operate the same and one of their manuals should be helpful.

:HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
: A BIG THANK YOU
: RANDALL
:

Hi Henry, a big thanks for your information you gave on CTI scope. My level of knowledge is i have a lot to learn.And by that i need help or i would not have ask for help. The CTI scope is a kit scope and there is no marking on the inside of the case that i took the works out of. I have taken pictures of the scope and if you can email me your email address i can send pictures of scope.I may be a Heathkit, Knight,or someone else who made the kit materal for CIT.The reason why i want the Manual, or the paper work that CIT School put out is then i will have the original paper on the scope.I am willing to pay for a copy and shipping as i said for the information.I would say this is one of the simpler scopes being it is a kit scope. Tubes in this scope are 1v2,6x4,12ax7,12bh7,2ea 12au7,6bq7,and 6ab4.It has a spot shape control in circuit, also it has c-1 and c-2 controls.I pulled out one of the tubes and it had on the tube if this is a code No. it was ECC82 and also 10-63-99-A.Well this is a enough info. for now i will wait for reply from you.
Thanks Again
Randall
:Hello. You didn't state your level of knowledge. If this is one of the simpler scopes with recurrent sweep it is very likely to be similar to one of the same kind of Heathkits since schools often used their kits as part of the course. This kind of scope is relatively simple and easy to operate. It would not be difficult to trace out the wiring and draw up a schematic using one of the Heath schematics as a rough guide.
:
:http://www.vintage-radio.info/heathkit/index.htm
:
:There are other Heathkit sites that have photos that might be close to what you have. Heath manuals are not free anymore. A similar EICO or Knight will operate the same and one of their manuals should be helpful.
:
:
::HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
:: A BIG THANK YOU
:: RANDALL
::
:

You'd be better off to post the photos here so a lot more folks could see them. I think you can just include them in the body of a post. Worth a try.

And someone may recognize it.

:
:

: : : : : : :Sir Randall. . . . . : : : : : : : :I was just standing back until I saw more definite info on that unit being supplied on your part . . . and now . . . : : :Can we assume that the unit "seems" to now work, and is quasi-functional. : : :That test can be as simple as inserting a bare wire lead into the vertical input connector and touching it with your finger and then seeing the sine wave display produced on the screen. : : :Then see if the vertical gain and its decade positions increases or decreases the display amplitude. : : :See if the hoz and vert positioning controls , skew the pattern to the left and right or up and down . : : :See if the focus control sharpens or blurs the display. : : :Adjust the hoz frequency control and its decade switch to see that the number of little sine wavelets will increase and decrease in numbers or drift to the right or left as you adjust the hoz vernier pot adjustment of the adjustments. : : :Flip the hoz input /sync selector switch to line sync and your displayed pattern should have a tendency to then hold more in place horizontally, versus just a slippee-sliddee and drifting from side to side on the screen, as when in the normal sync position. : : : :BTW, your other mentioned control, the "spot shape control" is (probably being remoted from the front panel) a companion to your focus control. : : :You turn the hoz input to external where you would then have only a single spot on the screen. : : :Immediately set the intensity down to where you are not getting too bright of a "spot". : : :Use the hoz and vert positioning controls to position it at the center of the screen. : : :Use the focus to get the smallest spot possible, BUT, you might find that the spot is ovaloid in shape, instead of a round dot, :if so, slightly trim in the "spot shape control" and the ovaloid should compress and shift towards being a circle. : : :You then work with inter-adjusting BOTH of those two controls to get the smallest, roundest, sharpest spot/dot possible. : : :After that , the "spot shape control" is relegated to being a set it and forget it type of control . . . excluding mass aging of the multi KV HV supply section of the unit. : : : :In receipt of the faceplate photo I can further fill you in on the other control adjustments that the set has. : : :Just by seeing your given tube lineup, I can already assign each tube as to its specific function in the unit. : : : : : : : : : :73's de Edd : : : :

:
:

:
:

: : : : Sir Edd, a big thank you for posting the picture of my scope that i am trying to get the paper work,or manual on. I appreciate your help in a bit way Randall : : :Sires . . . . . : : : : : : : :Well . . .here is what the critter looks like. . . : : :With the photo being created as a blooming, bloody J-peg, the faceplate did take on a bit of solarization in the intermodal transfer for processing, along with your yard leaves taking on an additional 3 months of age. : : :The physical aspects sort of reminds me more of an Eico offspring than a Heath. : : : : : : : : : :73's de Edd : : : :

:
:
:
:
:
:
:
:and someone may recognize it.
:
:
:

: : : : : : :Sir Randall. . . . . : : : : : : : :I was just standing back until I saw more definite info on that unit being supplied on your part . . . and now . . . : : :Can we assume that the unit "seems" to now work, and is quasi-functional. : : :That test can be as simple as inserting a bare wire lead into the vertical input connector and touching it with your finger and then seeing the sine wave display produced on the screen. : :Then see if the vertical gain and its decade positions increases or decreases the display amplitude. : : :See if the hoz and vert positioning controls , skew the pattern to the left and right or up and down . : : :See if the focus control sharpens or blurs the display. : : :Adjust the hoz frequency control and its decade switch to see that the number of little sine wavelets will increase and decrease in numbers or drift to the right or left as you adjust the hoz vernier pot adjustment of the adjustments. : : :Flip the hoz input /sync selector switch to line sync and your displayed pattern should have a tendency to then hold more in place horizontally, versus just a slippee-sliddee and drifting from side to side on the screen, as when in the normal sync position. : : : :BTW, your other mentioned control, the "spot shape control" is (probably being remoted from the front panel) a companion to your focus control. : : :You turn the hoz input to external where you would then have only a single spot on the screen. : : :Immediately set the intensity down to where you are not getting too bright of a "spot". : : :Use the hoz and vert positioning controls to position it at the center of the screen. : : :Use the focus to get the smallest spot possible, BUT, you might find that the spot is ovaloid in shape, instead of a round dot, :if so, slightly trim in the "spot shape control" and the ovaloid should compress and shift towards being a circle. : : :You then work with inter-adjusting BOTH of those two controls to get the smallest, roundest, sharpest spot/dot possible. : : :After that , the "spot shape control" is relegated to being a set it and forget it type of control . . . excluding mass aging of the multi KV HV supply section of the unit. : : : :In receipt of the faceplate photo I can further fill you in on the other control adjustments that the set has. : : :Just by seeing your given tube lineup, I can already assign each tube as to its specific function in the unit. : : : : : : : : : :73's de Edd : : : :

:
:
:
:

The Phosted Poto doesn't look like any of the common kit scopes. So it may be time to trace and draw to get to a schematic. If this is found to be intimidating, try to find a local enthuiast to help you. Someone with a few years of experience with old electronic things should be able to do this without great difficulty.

In the meantime, do web searches for all the old trade schools you can think of. It just may be some of them went to the same house to get their kits made.

HENRY RADIO:
YOU ARE SO RIGHT, THIS POTO DOESN'T LOOK LIKE ANY OF THE COMMON KIT SCOPES.YOUR INFORMATION YOU MADE REQUEST TO I HAVE ALREADY DONE. I AM SOMEONE WITH A FEW YEARS, MAYBE NOT WITH THE EXPERINCE OF OTHERS BUT I HAVE CHECKED OUT THE TRADE SCHOOLS.I HAVE NOT FOUND ANYTHING ON THE COMMERCIAL TRADES INSTITUTE, THE OTHERS I HAVE.AS I SAID I WAS A STUDENT WITH CTI BACK IN THE MID 70'S BEFORE THEY CLOSED OR WHAT EVER HAPPEN TO THEM.WHILE A STUDENT I BUILT A VTVM,A TUBE TESTER, AND A 19 INCH COLOR TV TUBE TYPE, THESE WERE ALL KITS STAGE BY STAGE UNTIL FINISHED.THERE WAS NO STAMP ANYWHERE ON THE KIT MATERAL WHO FURNISH IT.EBAY I HAVE SEEN THE VTVM,TUBE TESTER,THIS SCOPE,I HAVE AND ANOTHER SCOPE THEY PUT OUT AS A KIT. BUT NO PAPER WORK ON HOW TO BUILD OR OPERATE THE TEST EQUIPMENT WHEN FINISHED.I THANK YOU FOR YOUR HELP, AND IDEAS AND APPRECIATE IT VERY MUCH.

RANDALL

:The Phosted Poto doesn't look like any of the common kit scopes. So it may be time to trace and draw to get to a schematic. If this is found to be intimidating, try to find a local enthuiast to help you. Someone with a few years of experience with old electronic things should be able to do this without great difficulty.
:
:In the meantime, do web searches for all the old trade schools you can think of. It just may be some of them went to the same house to get their kits made.
:
:
:

:HENRY RADIO:
: YOU ARE SO RIGHT, THIS POTO DOESN'T LOOK LIKE ANY OF THE COMMON KIT SCOPES.YOUR INFORMATION YOU MADE REQUEST TO I HAVE ALREADY DONE. I AM SOMEONE WITH A FEW YEARS, MAYBE NOT WITH THE EXPERINCE OF OTHERS BUT I HAVE CHECKED OUT THE TRADE SCHOOLS.I HAVE NOT FOUND ANYTHING ON THE COMMERCIAL TRADES INSTITUTE, THE OTHERS I HAVE.AS I SAID I WAS A STUDENT WITH CTI BACK IN THE MID 70'S BEFORE THEY CLOSED OR WHAT EVER HAPPEN TO THEM.WHILE A STUDENT I BUILT A VTVM,A TUBE TESTER, AND A 19 INCH COLOR TV TUBE TYPE, THESE WERE ALL KITS STAGE BY STAGE UNTIL FINISHED.THERE WAS NO STAMP ANYWHERE ON THE KIT MATERAL WHO FURNISH IT.EBAY I HAVE SEEN THE VTVM,TUBE TESTER,THIS SCOPE,I HAVE AND ANOTHER SCOPE THEY PUT OUT AS A KIT. BUT NO PAPER WORK ON HOW TO BUILD OR OPERATE THE TEST EQUIPMENT WHEN FINISHED.I THANK YOU FOR YOUR HELP, AND IDEAS AND APPRECIATE IT VERY MUCH.
:
: RANDALL
:
:
:
::The Phosted Poto doesn't look like any of the common kit scopes. So it may be time to trace and draw to get to a schematic. If this is found to be intimidating, try to find a local enthuiast to help you. Someone with a few years of experience with old electronic things should be able to do this without great difficulty.
::
::In the meantime, do web searches for all the old trade schools you can think of. It just may be some of them went to the same house to get their kits made.
::
::
::
:

I worked at CTI in 1972-1978
If anyone is interested in knowing more about 'behind the scenes there, let me know

:I worked at CTI in 1972-1978
:If anyone is interested in knowing more about 'behind the scenes there, let me know
:
I HAVE ONE FOR SALE RIGHT NOW SEPT 29, 2010 FOR 4 MORE DAYS ONLY ON EBAY SEE ME AT = SAVYWORLD or just go to ebay and use commerical trades institute model sc30 in the search bar, it should come up if your selling this b4 it ends. I think it ends about oct. 4th 2010. thanks! Kevin

:I worked at CTI in 1972-1978
:If anyone is interested in knowing more about 'behind the scenes there, let me know
:
Hello Sandi,I also have the CS30 I was hoping to find out more about its rich history. I would also really like to get a copy of the photos if at all possible.
Thank you
Chris Sheldon

::I worked at CTI in 1972-1978
::If anyone is interested in knowing more about 'behind the scenes there, let me know
::
:Hello Sandi,I also have the CS30 I was hoping to find out more about its rich history. I would also really like to get a copy of the photos if at all possible.
:Thank you
: Chris Sheldon
:
Hi Chris, question did you get in touch with Sandy?.If so does she have a new email address?.

Randall Hornback

:Hello. You didn't state your level of knowledge. If this is one of the simpler scopes with recurrent sweep it is very likely to be similar to one of the same kind of Heathkits since schools often used their kits as part of the course. This kind of scope is relatively simple and easy to operate. It would not be difficult to trace out the wiring and draw up a schematic using one of the Heath schematics as a rough guide.
:
:http://www.vintage-radio.info/heathkit/index.htm
:
:There are other Heathkit sites that have photos that might be close to what you have. Heath manuals are not free anymore. A similar EICO or Knight will operate the same and one of their manuals should be helpful.
:
:
::HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
:: A BIG THANK YOU
:: RANDALL
::
:

i have the schematic for the sc-30::Hello. You didn't state your level of knowledge. If this is one of the simpler scopes with recurrent sweep it is very likely to be similar to one of the same kind of Heathkits since schools often used their kits as part of the course. This kind of scope is relatively simple and easy to operate. It would not be difficult to trace out the wiring and draw up a schematic using one of the Heath schematics as a rough guide.
::
::http://www.vintage-radio.info/heathkit/index.htm
::
::There are other Heathkit sites that have photos that might be close to what you have. Heath manuals are not free anymore. A similar EICO or Knight will operate the same and one of their manuals should be helpful.
::
::
:::HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
::: A BIG THANK YOU
::: RANDALL
:::
::
:

Hello John, wow what good news you sent my way.You say you have the schematic for the Commercial Trades SC-30 oscilloscope.What do i have to do to get a copy of it from you. And what is the price of it and shipping on it. Please let me know, and i will get my mailing address to you ok.A BIG THANK YOU John for getting in touch with me. Randall. :i have the schematic for the sc-30::Hello. You didn't state your level of knowledge. If this is one of the simpler scopes with recurrent sweep it is very likely to be similar to one of the same kind of Heathkits since schools often used their kits as part of the course. This kind of scope is relatively simple and easy to operate. It would not be difficult to trace out the wiring and draw up a schematic using one of the Heath schematics as a rough guide.
:::
:::http://www.vintage-radio.info/heathkit/index.htm
:::
:::There are other Heathkit sites that have photos that might be close to what you have. Heath manuals are not free anymore. A similar EICO or Knight will operate the same and one of their manuals should be helpful.
:::
:::
::::HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
:::: A BIG THANK YOU
:::: RANDALL
::::
:::
::
:

:Hello John, wow what good news you sent my way.You say you have the schematic for the Commercial Trades SC-30 oscilloscope.What do i have to do to get a copy of it from you. And what is the price of it and shipping on it. Please let me know, and i will get my mailing address to you ok.A BIG THANK YOU John for getting in touch with me. Randall. :i have the schematic for the sc-30::Hello. You didn't state your level of knowledge. If this is one of the simpler scopes with recurrent sweep it is very likely to be similar to one of the same kind of Heathkits since schools often used their kits as part of the course. This kind of scope is relatively simple and easy to operate. It would not be difficult to trace out the wiring and draw up a schematic using one of the Heath schematics as a rough guide.
::::
::::http://www.vintage-radio.info/heathkit/index.htm
::::
::::There are other Heathkit sites that have photos that might be close to what you have. Heath manuals are not free anymore. A similar EICO or Knight will operate the same and one of their manuals should be helpful.
::::
::::
:::::HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
::::: A BIG THANK YOU
::::: RANDALL
:::::
::::
:::
::
:

I worked there and saw first-hand how it operated. It is nostalgic to me because it was my first full time job and a wonderful place to work with wonderful, wonderful people! sandi

:I worked there and saw first-hand how it operated. It is nostalgic to me because it was my first full time job and a wonderful place to work with wonderful, wonderful people! sandi
:
RANDALL HORNBACK

Hi Randall, I wish I could help you with your schematics and other technical stuff, but of course cannot.
I left there in 1978, it was actually bought up by M-W Education Corporation (Montgomery Wards) I would get a Wards 20% discount at any Montgomery Wards store while working there. I left in 1978 because I was pregnant at the time. They stayed in business until around the very early 80's and just went defunct! I am trying to put a 'nostalgia' history with photos together for a scrapbook. It was the best secretarial job I ever had in 40 years, and the people did genuinely care. Of course, I did not have much to do with the teachers or home=study courses. I worked for the Director of Student Administration. I wish I could help you more Randall with your courses. I did see on EBAY, someone was selling a CTI book. Maybe that could help. Thanks again. Sandy

:Hi Randall, I wish I could help you with your schematics and other technical stuff, but of course cannot.
:I left there in 1978, it was actually bought up by M-W Education Corporation (Montgomery Wards) I would get a Wards 20% discount at any Montgomery Wards store while working there. I left in 1978 because I was pregnant at the time. They stayed in business until around the very early 80's and just went defunct! I am trying to put a 'nostalgia' history with photos together for a scrapbook. It was the best secretarial job I ever had in 40 years, and the people did genuinely care. Of course, I did not have much to do with the teachers or home=study courses. I worked for the Director of Student Administration. I wish I could help you more Randall with your courses. I did see on EBAY, someone was selling a CTI book. Maybe that could help. Thanks again. Sandy
:
Thanks again Sandy for your help, let me know when you finish your scrapbook if it has pictures of the CTI home-study course department in it.
Randall

Hello Randall, I am going to put this scrapbook together and I know I will have photos of old correspondence stuff; such as students fixing TV's. perhaps I can scan them.... and put them up at some point. Sandy

:Hello Randall, I am going to put this scrapbook together and I know I will have photos of old correspondence stuff; such as students fixing TV's. perhaps I can scan them.... and put them up at some point. Sandy
:
Randall

Hello Randall, I am going tonight (Tuesday, Feb 23rd) to pick up some glossy 8 x 10 pics. I am not a computer whiz, however, I will figure out how to scan them and can possibly send them your way. I know one picture is a lady with a bathing suit advertising CTI after World War II. It will be a classic. I was actually hoping for some 1970's pics (when I worked there)and not the older pictures. I know there are pics of students fixing TV sets. I will get them tonight from a stranger actually who has this. I will pay him a small fee and put my scrapbook together eventually. I will keep you posted Randall. Sandy

:Hello Randall, I am going tonight (Tuesday, Feb 23rd) to pick up some glossy 8 x 10 pics. I am not a computer whiz, however, I will figure out how to scan them and can possibly send them your way. I know one picture is a lady with a bathing suit advertising CTI after World War II. It will be a classic. I was actually hoping for some 1970's pics (when I worked there)and not the older pictures. I know there are pics of students fixing TV sets. I will get them tonight from a stranger actually who has this. I will pay him a small fee and put my scrapbook together eventually. I will keep you posted Randall. Sandy
:
Thanks Again
Randall

Hi Randall, thank you so much for the nice offer. When I visited with this person the other night, he gave me plenty of pics of students working on TV sets, oscilliscopes, and all kinds of things, more than I can ever want! There are some negatives as well that I am going to get processed... can't wait but very expensive, $20 or $25 a picture...
Anyways if I figure out how to scan the pictures, I will glady send them to you. I am not going to get them processed until after March some time. Also, I think I may be in one the negatives. Definitely my boss is in 2 of them, a young, young Mr. B.
Keep you posted. Sandy

:Hi Randall, thank you so much for the nice offer. When I visited with this person the other night, he gave me plenty of pics of students working on TV sets, oscilliscopes, and all kinds of things, more than I can ever want! There are some negatives as well that I am going to get processed... can't wait but very expensive, $20 or $25 a picture...
:Anyways if I figure out how to scan the pictures, I will glady send them to you. I am not going to get them processed until after March some time. Also, I think I may be in one the negatives. Definitely my boss is in 2 of them, a young, young Mr. B.
:Keep you posted. Sandy
:

Hi Randall, I called this man and he does not have any schematics unfortunately. I feel bad and wish he did.. I was lucky to get some pictures. If I eventually figure out how to scan and put it to a file, I will certainly send the pics to you... I don't plan on putting this together until around middle of March... thank you. i will let you know...

:Hi Randall, I called this man and he does not have any schematics unfortunately. I feel bad and wish he did.. I was lucky to get some pictures. If I eventually figure out how to scan and put it to a file, I will certainly send the pics to you... I don't plan on putting this together until around middle of March... thank you. i will let you know...
:

Randall, I scanned most of the CTI pics on my computer
If you leave your email address, perhaps I can send them to you. I still have the more recent ones (1974) that I have to have processed at the camera store, but I scanned some student pics, if you like. Leave your email address and when I get the time, I will send them your way. Sandy

:Randall, I scanned most of the CTI pics on my computer
:If you leave your email address, perhaps I can send them to you. I still have the more recent ones (1974) that I have to have processed at the camera store, but I scanned some student pics, if you like. Leave your email address and when I get the time, I will send them your way. Sandy
:
Randall

Hello Randall, thank you for your email addresss which is Hotralston@att.net
Give me till the weekend some time. I work 50 hours a week at the hospital (secretary) I scanned most of the photos except the more recent ones (1974) where I may be in it. I have professional negatives that have to be sent out to a professional lab (which i have not done yet)> I am very interested in those particularly because that was when I worked there. What I will send you is probably more what you would like, 1950's, 1960's pics!! Give me some time. Also, I don't know how to use a ZIP FILE, because there are about 20 -25 pics. What I will do, is split up a few emails to you, and send about 5-6 on each email to you...and send you a few emails...
Hope you like as much as I did.... and I will explain the pics if you don't understand who they are. It is so nostalgic with the boys with the pompador hair cuts working on engines of cars and refrigeration. Talk to you soon, it will be a small project sending them to you, but I will shortly. thanks Randall. Sandy

:Hello Randall, thank you for your email addresss which is Hotralston@att.net
:Give me till the weekend some time. I work 50 hours a week at the hospital (secretary) I scanned most of the photos except the more recent ones (1974) where I may be in it. I have professional negatives that have to be sent out to a professional lab (which i have not done yet)> I am very interested in those particularly because that was when I worked there. What I will send you is probably more what you would like, 1950's, 1960's pics!! Give me some time. Also, I don't know how to use a ZIP FILE, because there are about 20 -25 pics. What I will do, is split up a few emails to you, and send about 5-6 on each email to you...and send you a few emails...
:Hope you like as much as I did.... and I will explain the pics if you don't understand who they are. It is so nostalgic with the boys with the pompador hair cuts working on engines of cars and refrigeration. Talk to you soon, it will be a small project sending them to you, but I will shortly. thanks Randall. Sandy
:

Randall

:i have the schematic for the sc-30::Hello. You didn't state your level of knowledge. If this is one of the simpler scopes with recurrent sweep it is very likely to be similar to one of the same kind of Heathkits since schools often used their kits as part of the course. This kind of scope is relatively simple and easy to operate. It would not be difficult to trace out the wiring and draw up a schematic using one of the Heath schematics as a rough guide.
:::
:::http://www.vintage-radio.info/heathkit/index.htm
:::
:::There are other Heathkit sites that have photos that might be close to what you have. Heath manuals are not free anymore. A similar EICO or Knight will operate the same and one of their manuals should be helpful.
:::
:::
::::HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
:::: A BIG THANK YOU
:::: RANDALL
::::
:::
::
:

::i have the schematic for the sc-30::Hello. You didn't state your level of knowledge. If this is one of the simpler scopes with recurrent sweep it is very likely to be similar to one of the same kind of Heathkits since schools often used their kits as part of the course. This kind of scope is relatively simple and easy to operate. It would not be difficult to trace out the wiring and draw up a schematic using one of the Heath schematics as a rough guide.
::::
::::http://www.vintage-radio.info/heathkit/index.htm
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::::There are other Heathkit sites that have photos that might be close to what you have. Heath manuals are not free anymore. A similar EICO or Knight will operate the same and one of their manuals should be helpful.
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:::::HI TO ALL, I AM BACK CHECKING TO SEE IF ANY BODY OUT THERE WAS A STUDENT WITH COMMERICAL TRADES INSTITUTE OUT OF CHICAGO ILL.?.I know there has to be somebody that was. I am still looking for the paper work, or manual that came with the oscilloscope kit. It showed how to build,making the set-up adj's, and how to operate the scope. If you have the paper work, or manual please let me know and what your price is for a copy of it and shipping.The model of the scope is a S-C 30. I would appreciate it very much.
::::: A BIG THANK YOU
::::: RANDALL
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I have all the paperwork on the sc 30 scope. I also have the scope and was wanting to know the value. Thanks